EXPERIMENTAL STUDY AND NUMERICAL SIMULATION OF PROPELLANT IGNITION AND COMBUSTION FOR CASED TELESCOPED AMMUNITION IN CHAMBER
The cased telescoped ammunition (CTA) is a kind of charge structure with projectile embedded in the cartridge case. The projectile is placed in the control tube of cartridge before shooting. Therefore, in the process of interior ballistics, there is a motion of projectile in the control tube before projectile engraves the rifles, in contrast with the traditional ammunition. The consistency of this motion has an important influence on the stability of CTA interior ballistic performance. The experiments on ignition and combustion of propellants and motion of projectile in control tube are carried out using a high-speed video recording system in this study. The projectile velocity at the entrance of rifle is obtained from the recorded images. A two-phase flow model of CTA is also established and simulated numerically. The calculated projectile velocity is in good agreement with the experimental data. The numerical results show that the developed mathematical model gives the correct trend and can provide useful calculated parameters for structural design of CTA components.
LU Xin ZHOU Yan-huang YU Yong-gang
School of Power Engineering, NJUST, Nanjing, China, 210094
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
21-23
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）